Calibration device



FIG. 1 is a front, left and top perspective view of a calibration device showing our new design;

FIG. 2 is a rear, right and bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is an enlarged view of an encircled portion 9 of FIG. 1 ;

FIG. 10 is an enlarged view of an encircled portion 10 of FIG. 1 ;

FIG. 11 is an enlarged view of an encircled portion 11 of FIG. 1 ;

FIG. 12 is an enlarged view of an encircled portion 12 of FIG. 2 ;

FIG. 13 is an enlarged view of an encircled portion 13 of FIG. 2 ;

FIG. 14 is another front, left and top perspective view similar to FIG. 1 , but showing the arms in a folded state and the display being rotated through an angle 180 degrees; and,

FIG. 15 is another rear, right and bottom perspective view similar to FIG. 2 , but showing the arms in a folded state and the display being rotated through an angle 180 degrees.

The broken lines depict portions of the calibration device in which the design is embodied that form no part of the claimed design. 

CLAIM We claim the ornamental design for a calibration device, as shown and described. 